In the June 3, 2015, Federal Register, FDA confirmed that the final rule amending the color additive regulations, issued in the March 20, 2015, Federal Register, became effective as of April 21, 2015. The final rule expanded the regulations to include the use of synthetic iron oxide as a color additive for use in hard and soft candy, mints, and chewing gum. The rule was effective April 21, 2015.

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